Botox® is the most popular cosmetic procedure in the United States, offering instant results at an affordable price with miniscule risk. It reduces moderate to severe glabellar lines (the lines that appear between your brows). In clinical trials, an improvement can be seen within days and may last up to 4 months, although results may vary. Nearly 90% of men and women surveyed rated the improvement in the appearance of frown lines between their brows as moderate to better 1 month after treatment. Your doctor will administer several tiny injections of BOTOX® Cosmetic directly into the muscles that cause moderate to severe frown lines between the brows. No anesthesia is required, although your doctor may choose to numb the area with a cold pack or anesthetic cream prior to injecting. Discomfort is usually minimal and brief.